Fixture for gas-lamps.



L. F. FRANZ. FIXTURE FOR GAS LAMPS. APPLICATION FILED NOV. 1, 1913.

Patented July 6, 1915.

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LOUIS F. FRANZ, OF DAYTON, OHIO, ASSIGNOR TO THE ST. CLAIR MANUFACTURING COMPANY, OF DAYTON, OHIO, A CORPORATION OF OHIO.

FIXTURE FOR GAS-LAMPS.

Specification of Letters Patent.

Patented July 6, 1915.

To all whom it may concern:

Be it known that I, LOUIS F. FRANZ, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Fixtures for Gas-Lamps, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to fixtures for gas lamps and is more particularly designed for use with acetylene gas burners.

In the ordinary gas fixture, for acetylene gas, in which the gas tip is dropped below the supporting arm of the fixture, it has been found that the end block of the sup porting arm, which forms the connection between the arm and the jet pipe, will heat excessively. This heat produces two serious results. The heating of the gas passing through the fixture causes the same to deposit within the pipe a gummy substance which is hardened or carbonized by the heat and rapidly closes the conduit through the fixture. Further, the heating of the end block causes the same to tarnish and to soon become very unsightly.

The object of the present invention is to provide an end block of this kind which will not heat excessively, thereby overcoming both the objections above noted, further, to provide a fixture in which the end block will form a supporting connection for both the burner and the globe-supporting ring;

' and to so arrange the end block that it will be subjected to a relatively small amount of heat.

In the accompanying drawings, Figure 1 is a sectional view taken vertically through a fixture showing the end block in elevation; and Fig. 2 is a perspective view of an end block embodying my invention.

In these drawings I have illustrated one embodiment of the invention and have shown it applied to a lamp fixture of known construction and designed for use with acetylene gas. It will be understood, however, that this particular fixture is chosen for the purpose of illustration only and that the invention is applicable to fixtures of various types and is not necessarily confined to the use of acetylene gas, although it will probably have its greatest utility in connection with such gas.

The fixture comprises a supporting arm 1,

one end only of which is shown and which may constitute a part of the wall bracket, chandelier or any other supporting structure. Secured to the outer end of this arm in any suitable manner, as by screw-threa ding the two parts together, is what may be termed an end block 2, in which certain novel features of my invention reside. This block supports a pipe 3 leading to the gas tip 4, the tipbeing located some distance beneath the end of the block 2. The end block is of such a construction that it will not become overheated by the action of the gas flame at the tip 4. While the shape here shown gives excellent results it is possible to modify this to a greater or lesser extent and still secure satisfactory results. As here shown the block has its side walls, one of which is indicated by the reference numeral 5, substantially vertical and converging forwardly. The forward ends of the side walls are of less width than the rear ends and are turned downwardly, as shown. The top and front end wall are combined, as indicated at 6, and this top and end wall tapers forwardly and is curved forwardly and downwardly so that it may be connected at its lateral edges with the upper and front edges of the side walls. The bottom edges of the side walls are also connected by a suitable wall structure. The block has, of course, the usual longitudinal conduit to connect the conduit of the supporting arm with the jet pipe 3. As a result the block presents curved and rearwardly diverging surfaces to the action of the heat. Such an end block will not heat to such an extent as to either tarnish the same or to o act upon the gas passing through the same as to cause the gummy deposit above mentioned.

The means for connecting the end block with the jet pipe and with the globe which incloses the jet pipe and tip may be of any suitable character. In the present instance the end block is provided with a threaded nipple 7 which screws into the upper end of a coupling 8 forming part of a bracket 9 and into the lower end of which the jet pipe 3 may be screwed. The bracket 9 has rigidly secured thereto a collar 10 which supports the globe 11. In this manner both the burner pipe and the globe-supporting ring are connected to the arm 1 by the end block and the block is arranged outside the globe and out of the direct path of the heated air currents rising from the burner, thus providing an arrangement which, particularly when combined with my special end block, revents the excessive heating of the end lock.

While I have shown and described one embodiment of my invention it will be understood that this has been chosen for the purpose of illustration only and that I do not desire to be limited to the details of construction shown and described, for obvious modifications will occur to a person skilled in the art. v

, Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is

1. In a gas fixture, the combination, with a supply pipe constituting a supporting arm, a globe-supporting ring having its wall near the end of said arm, and a globe-carried by said ring, of a burner pipe having its upper end arranged within and close to the wall of said ring and secured thereto, an upwardly directed burner carried by said burner pipe and arranged centrally of said globe, and an end block secured to the end of said supporting arm having substantially vertical side walls and a forwardly and downwardly curved top and front wall, said end block being connected at its lower end with said burner pipe and said ring to support the latter and to connect the former with said supply pipe.

2. In a gas fixture, a globe-supporting ring, an inwardly extending bracket rigidly secured to said ring, a supporting arm ar-' ranged above said ring, an end block secured to one end of said arm and having a body portion provided with substantially vertically forwardly converging side walls provided with downwardly turned front end Copies of this patent may be obtained for bracket to support the same, a

five cents each, by addressing Washington, D. c.

portions and also provided with a substantially fiat tOp and front wall curved forwardly and downwardly and connected at its lateral edges to the upper and front edges of said side wall, the downturned end of said end block being secured to said burner pipe secured to said bracket and connected with said end block, and a burner carried by said burner pipe.

3. A gas fixture comprising a globe-supporting ring, an upwardly extending bracket rigidly secured to said ring, a supporting arm arranged above said ring, an end block secured to said arm and having a downturned end secured to said bracket, whereby said globe-supporting ring is supported by said arm, said end block being tapered from its point of connection with said arm to its point of connection with said bracket, a burner pipe secured to said bracket and connected with said end block, and a burner carried by said burner pipe.

4:. A gas fixture comprising a globe-supporting ring, an upwardly extending bracket rigidly secured to said ring, a supporting arm arranged above said ring, an end block secured to said arm and having a downturned end secured to saidbracket, whereby said globe-supporting ring is supported by said arm, a burner pipe secured to said bracket, depending therefrom and connected with said end block, and an upwardly directed burner carried by said burner pipe.

In testimony whereof, I affix my signature in presence of two witnesses.

LOUIS F. FRANZ.

Witnessesz F. W. SCHAEFER, II. L. HAMMAKER.

the Commission a? t 

